Convert PPT to PDF with Aspose.Slides for Java

introduction_converting_powerpoint_presentations_t.java

import com.aspose.slides.*;

public class PptToPdfConverter {
    public static void main(String[] args) {
        // Path to the license file (optional for evaluation)
        try {
            License license = new License();
            license.setLicense("Aspose.Slides.Java.lic");
        } catch (Exception e) {
            System.out.println("License not found or invalid: " + e.getMessage());
        }

        // Input PowerPoint file (PPT or PPTX)
        String inputPath = "sample.pptx";
        // Output PDF file
        String outputPath = "sample.pdf";

        try (Presentation pres = new Presentation(inputPath)) {
            // Configure PDF save options
            PdfSaveOptions options = new PdfSaveOptions();
            options.setCompressImages(true);          // Reduce image size
            options.setEmbedFullFonts(true);          // Embed all fonts
            options.setImageQuality(80);              // Set image quality (0-100)

            // Save the presentation as PDF
            pres.save(outputPath, SaveFormat.Pdf, options);
            System.out.println("Conversion completed successfully.");
        } catch (Exception ex) {
            System.err.println("Error during conversion: " + ex.getMessage());
        }
    }
}